I'm sorry, but carla's dh is entitled to live in her house as he is her husband and has matrimonial rights.
If it were the other way round, i.e. carla was living in a house owned by her husband, would you tell her she had no right to be there?
If he is violent, then she has a right to get him out, but through the proper channels. OK he's been stupid and insulting in visiting porn sites and possible signing up for a dating site, but I don't think a court would consider these grounds to chuck him out of his home. They may be grounds for a divorce, if she has the will.